The Molli (German: Mecklenburgische Bäderbahn "Molli") short: (MBB) is a narrow gauge steam-powered railway in Mecklenburg, running on 900 mm (2 ft 111⁄2 in) gauge track. It operates between Bad Doberan, Heiligendamm and Kühlungsborn West on a total distance of 15.4 km with a running time of 40 minutes. Inside Bad Doberan the line is built in the road, later along a linden tree-lined avenue. Between Heiligendamm and Kühlungsborn the tracks run parallel to the Baltic Sea beach across fields.